The average amount of time to finish this quiz is 26 minutes with a standard deviation of 1.2
minutes. What is the probability that you will finish this quiz in 26.54 minutes or less? Write your
answer as a percentage with 2 decimals.
0.03593 Write your answer as a percentage with 2 decimals = 3.59% Step-by-step explanation: The z score formula is given as: z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation. Mean = 26 minutes Standard deviation = 1.2 minutes. The probability that you will finish this quiz in 23.84 minutes or less(≤) is calculated as: z = (x-μ)/σ z = 23.84 - 26/1.2 z = -1.8 Probability value from Z-Table: P(x ≤ 23.84) = 0.03593 Converting to percentage 0.03593 × 100 = 3.593 Approximately to 2 decimal places = 3.59%
